I love nGlide but when I play Return To Castle Wolfenstein I have to uninstall it every time because it makes RTCW unplayable (graphics streches allover). Is there a way to just "turn nGlide off" - to disable it, instead of uninstalling and then installing it again next ime?

Two more games without an easy way to select software/d3d/glide: Jane's AH-64D Longbow 2 (without ddu update) and King's Quest: Mask of Eternity. Still - IMHO, there is no need to create the way to on/off nGlide...